Multi-country eSIM
ONE eSIM for 3 countries. Install at home, switch on when you land.
Networks
The cheapest China mainland & Japan & South Korea eSIM (3 countries) is $5.06 for 1 GB · 7 days; unlimited data costs $2.64 a day (the first 500 MB each day at high speed, then 384 Kbps under the fair use policy). Plans include 5G. Prices checked 9 November 2026.
At a glance
Prices
| Data | Validity | Price | Network |
|---|---|---|---|
| 1 GB | 7 days | $5.06 | 5G |
| 3 GB | 15 days | $12.54 | 5G |
| 3 GB | 30 days | $12.98 | 5G |
| 5 GB | 30 days | $19.36 | 5G |
| 10 GB | 30 days | $33.44 | 5G |
| 20 GB | 30 days | $55.00 | 5G |
| Unlimited: the first 500 MB each day at high speed, then 384 Kbps under the fair use policy | 1 to 30 days | $2.64 a day | 5G |
| Unlimited: the first 1 GB each day at high speed, then 384 Kbps under the fair use policy | 1 to 30 days | $4.84 a day | 5G |
| Unlimited: the first 2 GB each day at high speed, then 128 Kbps under the fair use policy | 1 to 30 days | $9.46 a day | 5G |
Before you go
Plans connect to a local network in each of the 3 countries, China Unicom (5G), KDDI/au (5G) and SKTelecom (5G), and switch as you cross a border. 5G is included where the operator has it and your phone supports the local bands; elsewhere you get 4G.
Maps, messaging, ride apps and a few photos use about 300 to 500 MB a day, so 1 GB covers a short stay and 3 to 5 GB a week of normal use. The smallest plan is 1 GB · 7 days for $5.06; a longer trip is cheaper per gigabyte on a bigger plan. For video calls, streaming or a hotspot for a laptop, unlimited daily data starts at $2.64 a day. Most plans top up from your order page if you run low.
A local SIM card means a shop, a passport and a new number in every country on the route. One regional eSIM is bought once, installed before you fly and keeps working at each border.
Why an eSIM
Landing across 3 countries with data already working means maps, translation and your ride from the airport are ready before you reach the exit. No kiosk, no passport photocopy, no hunting for Wi-Fi.
One eSIM covers every country in the region, so you cross borders without buying again. Your plan keeps running on the local networks at each stop.
Install on Wi-Fi at home and keep the line switched off until you land. Validity starts the first time it connects abroad, not when you buy.
Good to know
Plans start at $2.64; a data plan costs from $5.06 for 1 GB · 7 days. Unlimited daily data costs $2.64 a day (the first 500 MB each day at high speed, then 384 Kbps under the fair use policy). Prices are in US dollars and include everything: no roaming fees, no subscription.
On nearly every plan, the first time the eSIM connects to a network abroad, not when you buy or install it. A few plans start on installation; each plan says which. Install within 180 days of purchase.
Turn the travel line on, enable data roaming for that line only, and set it as your mobile data line. Keep data roaming off on your home line. Most phones set the APN automatically. If you are connected but have no data, enter the APN shown on your order page or eSIM page (none shown means the phone sets it itself), or reply to your order email and we will help.
Each China mainland & Japan & South Korea plan lists its operators and whether they run 3G, 4G or 5G; each plan card shows its best generation. Daily unlimited plans slow to the fair-use speed shown on the plan once the day's full-speed data is used.
Most plans can be topped up from your order page, with more data for the same area or more days. Plans marked non-reloadable cannot; buy a new one and it installs the same way.
Yes, personal hotspot works on every plan.
